Willis Appoints John Merkovsky as Group Head of Risk Services

New role will drive innovation and deliver greater coordination of risk advisory services to clients

London, UK, 3 February, 2014 – Willis Group Holdings (NYSE:WSH), the global
risk adviser, insurance and reinsurance broker, has appointed John Merkovsky as
Group Head of Risk Services. This new role is effective immediately.

Working closely with Willis's Industry and Product heads, and the retail leadership in
individual regions and countries, Merkovsky will look to grow the company's existing
team of risk specialists to deliver the full range of Willis's global industry, insurance
and risk management expertise in a more coordinated way in the various territories in
which Willis operates.

Merkovsky was previously Global Leader and subsequently CEO for Marsh's Risk
Consulting Practice, roles he held from 2005 until 2012. He was also responsible for
Marsh's thought leadership activities around emerging risk issues including climate
change, pandemic and supply chain. In 2012 Merkovsky founded the Marsh Office of
Innovation. He is also an annual contributor to the World Economic Forum's Global
Risk Network Report.

Commenting on the appointment Hearn said: “This appointment speaks to Willis's
commitment to become the Analytical Broker. Our main focus today is to integrate
risk insights with practical and strategic solutions for our clients. By doing so we help
them to build resilience in their organisations and compete more effectively. John has
a huge amount of experience in leading organisations to help clients better
understand risk in its many forms and in responding with innovative solutions.”

He continued: “Businesses today have a pressing desire to gain a much better
understanding of the threats they currently face or may be exposed to in the future.
And in response to a challenging operating environment, companies are increasingly
demanding new services, tools, advice and expertise to help them interpret and
diagnose risks. Our role is to equip clients with these tools and to use our insights
and expertise to help our clients make more informed decisions.”

John Merkovsky said: “This is a tremendous opportunity to further develop the
concept of Willis as the Analytical Broker and to establish the company as the
leading global risk advisor. Willis has deeply impressive risk advisory, risk
engineering, analytics and other risk related capabilities. Connecting these
considerable talents will help drive the development of innovative new risk solutions
for our clients.”

About Willis

Willis Group Holdings plc is a leading global risk advisor, insurance and reinsurance
broker. With roots dating to 1828, Willis operates today on every continent with more
than 17,500 employees in over 400 offices. Willis offers its clients superior expertise,
teamwork, innovation and market-leading products and professional services in risk
management and transfer. Our experts rank among the world's leading authorities on
analytics, modelling and mitigation strategies at the intersection of global commerce
and extreme events. Find more information at our website, www.willis.com, our
leadership journal, Resilience, or our up-to-the-minute blog on breaking news,
WillisWire. Across geographies, industries and specialisms, Willis provides its local
and multinational clients with resilience for a risky world.